Mason Hawkins - Longleaf Partners 13F Activity & Position Changes (Q3 2025)

According to the SEC 13F filed on Nov 14, 2025, the Longleaf Partners portfolio showed several notable changes in holdings as of quarter-end Sep 30, 2025. The activity included new positions, additions to existing holdings, reductions, and complete exits, providing a clear view of how the portfolio evolved during the quarter.

During Q3 2025, the filing reported:

New Buys - Avantor, Inc., Rayonier Inc. REIT, Constellation Brands, Inc.

Increases - Albertsons Companies, Inc., ACM Research, Inc., Alexander's, Inc., CNX Resources Corporation, Enovis Corporation, and 7 more

Reductions - Bio-Rad Laboratories, Inc., CNH Industrial, Walt Disney Company (The), Fortune Brands Innovations, Inc, FedEx Corporation, and 16 more

Complete Exits - ANGI, HF Sinclair Corporation, Oscar Health, Inc., Park Hotels & Resorts Inc., Millicom, and 1 more

These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.

Date	Symbol	Name	Type	Change Qty	% Change	Value	Remaining
Q3 2025	00183L201 ANGI	ANGI	Sell - Position Exit	-2,067,648	-100.0%	$0.00	-
Q3 2025	ACI Albertsons Companies, Inc.	Albertsons Companies, Inc.	Buy	+1,481,692	+42.8%	$86.57M	4,943,869
Q3 2025	ACMR ACM Research, Inc.	ACM Research, Inc.	Buy	+299,943	+25.3%	$58.13M	1,485,687
Q3 2025	ALX Alexander's, Inc.	Alexander's, Inc.	Buy	+59,209	+93.2%	$28.77M	122,712
Q3 2025	AVTR Avantor, Inc.	Avantor, Inc.	Buy - Position Entry	+5,149,420	-	$64.26M	5,149,420
Q3 2025	BIO Bio-Rad Laboratories, Inc.	Bio-Rad Laboratories, Inc.	Sell	-78,031	-24.7%	$66.52M	237,254
Q3 2025	CNH CNH Industrial	CNH Industrial	Sell	-44,439	-1.2%	$40.33M	3,716,808
Q3 2025	CNX CNX Resources Corporation	CNX Resources Corporation	Buy	+289,873	+6.5%	$152.65M	4,752,629
Q3 2025	DINO HF Sinclair Corporation	HF Sinclair Corporation	Sell - Position Exit	-1,751,822	-100.0%	$0.00	-
Q3 2025	DIS Walt Disney Company (The)	Walt Disney Company (The)	Sell	-4,470	-1.5%	$32.73M	285,860
Q3 2025	ENOV Enovis Corporation	Enovis Corporation	Buy	+17,878	+48.9%	$1.65M	54,461
Q3 2025	FBIN Fortune Brands Innovations, Inc	Fortune Brands Innovations, Inc	Sell	-15,713	-1.5%	$54.22M	1,015,602
Q3 2025	FDX FedEx Corporation	FedEx Corporation	Sell	-5,156	-1.4%	$88.28M	374,380
Q3 2025	FIS Fidelity National Information S	Fidelity National Information S	Sell	-323,148	-34.0%	$41.29M	626,109
Q3 2025	G27907107 Dole	Dole	Sell	-515,436	-21.0%	$25.99M	1,933,708
Q3 2025	G9618E107 White Mountains	White Mountains	Buy	+10,558	+50.1%	$52.91M	31,652
Q3 2025	GHC Graham Holdings Company	Graham Holdings Company	Sell	-7,542	-17.6%	$41.63M	35,357
Q3 2025	H Hyatt Hotels Corporation	Hyatt Hotels Corporation	Sell	-296,984	-96.9%	$1.35M	9,508
Q3 2025	HDB HDFC Bank Limited	HDFC Bank Limited	Buy	+10,780	+27.6%	$1.70M	49,874
Q3 2025	HTHT H World Group Limited	H World Group Limited	Sell	-19,894	-2.2%	$34.29M	876,862
Q3 2025	IAC IAC Inc.	IAC Inc.	Sell	-163,469	-5.6%	$94.29M	2,767,511
Q3 2025	KHC The Kraft Heinz Company	The Kraft Heinz Company	Sell	-36,887	-1.0%	$94.72M	3,637,374
Q3 2025	KSPI Joint Stock Company Kaspi.kz -	Joint Stock Company Kaspi.kz -	Sell	-10,362	-5.5%	$14.58M	178,444
Q3 2025	LYV Live Nation Entertainment, Inc.	Live Nation Entertainment, Inc.	Sell	-3,706	-26.3%	$1.70M	10,380
Q3 2025	MAT Mattel, Inc.	Mattel, Inc.	Buy	+941,031	+13.0%	$137.35M	8,161,296
Q3 2025	MGM MGM Resorts International	MGM Resorts International	Sell	-27,102	-1.5%	$60.59M	1,748,002
Q3 2025	MLCO Melco Resorts & Entertainment L	Melco Resorts & Entertainment L	Sell	-4,386,852	-68.6%	$18.44M	2,010,419
Q3 2025	OMI Owens & Minor, Inc.	Owens & Minor, Inc.	Buy	+98,260	+78.4%	$1.07M	223,660
Q3 2025	OSCR Oscar Health, Inc.	Oscar Health, Inc.	Sell - Position Exit	-881,857	-100.0%	$0.00	-
Q3 2025	PCH PotlatchDeltic Corporation - Co	PotlatchDeltic Corporation - Co	Buy	+1,175,507	+122.9%	$86.87M	2,131,754

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